AP blueprints (activitypub.py, ap_social.py) were querying federation
tables (ap_actor_profiles etc.) on g.s which points to the app's own DB
after the per-app split. Now uses g._ap_s backed by get_federation_session()
for non-federation apps.
Also hardens Ghost sync before_app_serving to catch/rollback on failure
instead of crashing the Hypercorn worker.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
send_follow now emits a Follow activity via emit_activity() instead of
inline HTTP POST. New ap_follow_handler delivers to the remote inbox;
EventProcessor retries on failure. Wildcard delivery handler skips
Follow type to avoid duplicate broadcast.
Also add /social/ index page to per-app social blueprint.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Lightweight social pages (search, follow/unfollow, followers, following,
actor timeline) auto-registered for AP-enabled apps via shared blueprint.
Federation keeps the full social hub. Followers scoped per app_domain;
post cards show "View on Hub" link instead of interaction buttons.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
